Host: The Ceramic Society of Japan
Tellurite glass is expected very much as optical control glass with a large refractive index and the efficient optical nonlinearity. It was reported that nanometer-scale glass particles were successfully produced by ultraviolet laser irradiation on the surface of tellurite (TeO2) based glasses and whose diameters and heights are able to control by condition of UV laser irradiation. Such particle structure of nano-size turns into important structure for realization of the nanometer-scale optical circuit exceeded diffraction limit operating the new photon propagation system. However, the formation mechanism of a nano particle is not clear yet at present. To modify any desired patterns and size of ordered nano-particles, it is quite important to understand the formation mechanism of UV-induced nano particles. In this research, to clarify that, we applied UV laser irradiations with heating assistance. The diameter of a particle did not change but particle height grew greatly. This result has suggested that the thermal effect is participating in particle formation.
